Multiband observations of Cygnus A: A study of pressure balance in the core of a powerful radio galaxy

Details Multiband observations of Cygnus A: A study of pressure balance in the core of a powerful radio galaxy Multiband observations of Cygnus A: A study of pressure balance in the core of a powerful radio galaxy

Jul 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990nascp3084..146c&link_type=abstract

In its The Interstellar Medium in External Galaxies: Summaries of Contributed Papers p 146-148 (SEE N91-14100 05-90)

Astronomy and Astrophysics

Astronomy

Elliptical Galaxies, Galactic Clusters, Interstellar Matter, Radio Sources (Astronomy), Spectroscopy, X Rays, Cooling, Imaging Techniques, Narrowband, Radii

Scientific paper

Cygnus A is a powerful double radio source associated with a giant elliptical galaxy at the center of a poor cluster of galaxies. The radio source also sits within the core radius of a dense, cooling flow, x ray emitting cluster gas. Optical spectroscopy and narrow band imaging have revealed copious amounts of narrow line emission from the inner 20 kpc of the associated galaxy. Researchers assume Ho = 75 km sec (-1) Mpc(-1). Discussed here are the pressures in the three components of the Interstellar Medium (ISM) (i.e., the radio, x ray, and line emitting fluids) within a radius of about 15 kpc of the active nucleus of the Cygnus A galaxy.

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